async cancel

ThreadCancellation_async/master_slave/master_slave.c

@@ -0,0 +1,37 @@
+#include "master_slave.h"
+
+void *
+write_into_file(void* arg) {
+	
+	char file_name[64];
+	char string_to_write[64];
+	int len;
+	int count = 0;
+
+	/* Mark the thread eligible for cancellation */
+	pthread_setcancelstate(PTHREAD_CANCEL_ENABLE /*PTHREAD_CANCEL_DISABLE*/, 0);
+
+	/* Mode of cancellation */
+	pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, 0);
+	int* thread_id = (int*)arg;
+	
+	sprintf(file_name, "thread_%d.txt", *thread_id);
+
+	FILE* fptr = fopen(file_name, "w");
+
+	if (!fptr) {
+		printf("Error : Could not open log file %s, errno = %d\n",
+			file_name, errno);
+		return 0;
+	}
+
+	while (1) {
+		len = sprintf(string_to_write, "%d : I'm thread %d\n", count++, *thread_id);
+		fwrite(string_to_write, sizeof(char), len, fptr);
+		fflush(fptr);
+		sleep(1);
+	}
+
+	fclose(fptr);
+	return 0;
+}